This is a note to let you know that I've just added the patch titled
ubsan: Restore dependency on ARCH_HAS_UBSAN
to the 6.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ubsan-restore-dependency-on-arch_has_ubsan.patch
and it can be found in the queue-6.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f6171c217cb107bf59794997674d736847819da5
Author: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Tue May 14 16:37:48 2024 -0700
ubsan: Restore dependency on ARCH_HAS_UBSAN
[ Upstream commit 890a64810d59b1a58ed26efc28cfd821fc068e84 ]
While removing CONFIG_UBSAN_SANITIZE_ALL, ARCH_HAS_UBSAN wasn't correctly
depended on. Restore this, as we do not want to attempt UBSAN builds
unless it's actually been tested on a given architecture.
Reported-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Closes: https://lore.kernel.org/all/20240514095427.541201-1-masahiroy@xxxxxxxxxx
Fixes: 918327e9b7ff ("ubsan: Remove CONFIG_UBSAN_SANITIZE_ALL")
Link: https://lore.kernel.org/r/20240514233747.work.441-kees@xxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index e81e1ac4a919b..bdda600f8dfbe 100644
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -4,6 +4,7 @@ config ARCH_HAS_UBSAN
menuconfig UBSAN
bool "Undefined behaviour sanity checker"
+ depends on ARCH_HAS_UBSAN
help
This option enables the Undefined Behaviour sanity checker.
Compile-time instrumentation is used to detect various undefined
